Extrol®

Specialty Models

Fill-Trol®: Boiler System Expansion Tank

Fill-Trol combines a boiler system expansion tank with an automatic fill valve to control system pressure. This eliminates the need for a separate, automatic fill valve.

Radiant Extrol®: Radiant Flooring Expansion Tank

The Radiant Extrol Expansion Tank is specifically designed for low temperature radiant flooring systems. These tanks absorb thermally expanded water to keep the system pressure at safe levels then return that water to the system as the temperature cools.

Solar Extrol®: Solar Heating Expansion Tanks

The Solar Extrol Expansion Tank is specially designed for use in high-efficiency solar systems. These tanks absorb thermally expanded water to keep system pressure at safe levels then return that water to the system as the temperature cools.

  • FEATURES
  • SPECIFICATIONS
  • BROCHURES
  • MANUAL & SUBMITTALS

FEATURES

Fill-Trol
Boiler System Expansion Tank

  • Eliminates the Need for a Separate, Automatic Fill Valve.
  • Strongest Tank Design Featuring Deep Drawn Steel.
  • Heavy Duty Butyl/EPDM Diaphragm.
  • Maximum Fill Pressure: 100 PSIG.
  • Patent-Pending InSight™ Service Indicator Cap.
  • Available in 2 through 14 Gallon Sizes.
  • Combination Packages Include an Air Purger (1” Model 443  or 1 ¼” Model 444) and an Air Vent (Model 700-C).

Radiant Extrol
Radiant Flooring Expansion Tank

  • For Use in Radiant Flooring and Other Low Temperature Systems.
  • Plastic Liner is Compatible with Barrier and Non-Barrier Tubing.
  • Suitable for Glycol Applications.
  • Stainless Steel Connection for Corrosion Resistance.
  • Patent-Pending InSight™ Service Indicator Cap.
  • Available in 2.0, 4.4 and 10.3 Gallon Sizes.

Solar Extrol
Solar Heating Expansion Tank

  • For Use in High-Efficiency Solar Systems.
  • Suitable for Glycol Applications.
  • Heavy Duty Diaphragm is More Reliable than Bladder Type Tanks.
  • Patent-Pending InSight™ Service Indicator Cap.
  • Available in 2.0, 4.4 and 7.4 Gallon Sizes.

SPECIFICATIONS

Construction

  • Diaphragm: Heavy Duty Butyl
  • Shell: Steel
  • System Connection:
       Fill-Trol: Brass
       Radiant Extrol: Stainless Steel
       Solar Extrol: Steel
  • Air Stem: Projected Welded
  • Air Valve Cap: Patent-Pending InSight™ Service Indicator Cap
  • Factory Precharge:
       Fill-Trol: 12 PSIG (0.8 bar)
       Radiant Extrol: 12 PSIG (0.8 bar)
       Solar Extrol: 25 PSIG (1.7 bar)

Performance

  • Max. Operating Temperature:
       Fill-Trol: 240º F (116º C)
       Radiant Extrol: 200º F (93º C)
       Solar Extrol:
       · 250º F (121º C) Intermittent
       · 225º F (107º C) Continuous
  • Max. Working Pressure: 
       Fill-Trol: 100 PSIG (6.9 bar)
       Radiant Extrol: 100 PSIG (6.9 bar)
       Solar Extrol: 150 PSIG (10.3 bar)
  • Warranty:  5-Year Limited

BROCHURES

SELECTION TOOLS

Sizing & Application

Installer

REWARDS

LOGIN HERE

FIND A PRO

Sales Reps, Distributors, Installers